Fermi-surface topology of kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br at ambient pressure

被引：51

作者：

Mielke, CH ^{[1
]}

Harrison, N ^{[1
]}

Rickel, DG ^{[1
]}

Lacerda, AH ^{[1
]}

Vestal, RM ^{[1
]}

Montgomery, LK ^{[1
]}

机构：

[1] INDIANA UNIV, DEPT CHEM, BLOOMINGTON, IN 47405 USA

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.56.R4309

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ambient pressure Fermi-surface measurements are reported for kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br. The single Shubnikov-de Haas frequency that is detected (3798+/-5 T) corresponds to 100% of the Brillouin zone and can be attributed to the beta orbit that results from magnetic breakdown. From the temperature dependence of the oscillations, it appears that kappa-(BEDT-TTF)(2)Cu[N(CN)(2))Br possesses a conventional Fermi-liquid ground state, although with a short mean free path, possibly due to the presence of Cu(II) ions. The effective mass as determined from the beta-orbit oscillations is m* = 5.4 +/- 0.1 m(e).

引用

页码：R4309 / R4312

页数：4

共 50 条

[1] Fermi-surface topology of kappa-(BEDT-TTF)2Cu[N(CN)2]Br at ambient pressure
Mielke, C. H.
Harrison, N.
Rickel, D. G.
Lacerda, A. H.
Physical Review B: Condensed Matter, 56 (08):
[2] FERMI-SURFACE MODULATION BY PRESSURE IN KAPPA-(BEDT-TTF)2CU(NCS)2
OSHIMA, K
MORI, T
INOKUCHI, H
MORI, H
YAMOCHI, H
SAITO, G
SYNTHETIC METALS, 1991, 42 (1-2) : 2175 - 2178
[3] ELECTRODYNAMICS OF THE ORGANIC SUPERCONDUCTORS KAPPA-(BEDT-TTF)(2)CU(NCS)(2) AND KAPPA-(BEDT-TTF)(2)CU[N(CN)(2)]BR
DRESSEL, M
KLEIN, O
GRUNER, G
CARLSON, KD
WANG, HH
WILLIAMS, JM
PHYSICAL REVIEW B, 1994, 50 (18): : 13603 - 13615
[4] LOW-FREQUENCY RAMAN-SPECTRA IN KAPPA-(BEDT-TTF)(2)CU(NCS)(2) AND KAPPA-(BEDT-TTF)(2)CU[N(CN)(2)]BR
SEKINE, T
OHMAMIUDA, A
TANOKURA, Y
SAITO, G
IKEDA, K
NAKAMURA, T
TAKAHASHI, T
SYNTHETIC METALS, 1995, 70 (1-3) : 981 - 982
[5] Electron states and Fermi surfaces in the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br
Ching, WY
Xu, YN
Jean, YC
Lou, Y
PHYSICAL REVIEW B, 1997, 55 (05): : 2780 - 2783
[6] Electron states and Fermi surfaces in the organic superconductor kappa-(BEDT-TTF)2Cu[N(CN)2]Br
Phys Rev B, 5 (2780):
[7] Interlayer transport in the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br
Zuo, F
Su, X
Alexandrakis, GC
Schlueter, JA
Kelly, ME
Williams, JM
PHYSICA C, 1997, 282 : 1901 - 1902
[8] Magnetic torque of kappa-(BEDT-TTF)(2)Cu[N(CN)(2))Br single crystal
Kawamata, S
Okuda, K
Sasaki, T
Toyota, N
JOURNAL OF LOW TEMPERATURE PHYSICS, 1996, 105 (5-6) : 1721 - 1726
[9] MOMENTUM DISTRIBUTION IN KAPPA-(BEDT-TTF)2CU[N(CN)2]BR ORGANIC SUPERCONDUCTOR MEASURED BY POSITRON-ANNIHILATION - SEARCH FOR THE FERMI-SURFACE
JEAN, YC
LOU, Y
YEN, HL
OBRIEN, KM
WEST, RN
WANG, HH
CARLSON, KD
WILLIAMS, JM
PHYSICA C, 1994, 221 (3-4): : 399 - 404
[10] Anomalous behavior of the thermoelectric power in the vicinity of the superconducting transition in the organic superconductors kappa-(BEDT-TTF)(2)Cu(NCS)(2) and kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br
Logvenov, GY
Kartsovnik, MV
Ito, H
Ishiguro, T
Kund, M
Saito, G
Takasaki, S
Yamada, J
Anzai, H
JOURNAL DE PHYSIQUE I, 1996, 6 (12): : 2051 - 2060

← 1 2 3 4 5 →